Impacts of Inventory Credit, Input Supply Shops and Fertilizer Micro-Dosing in the Drylands of Niger
This study investigates the impacts of access to inventory credit (warrantage), input supply shops, fertilizer micro-dosing demonstrations, and other factors on farmers' use of inorganic and organic fertilizer in Niger, and the impacts on crop yields. We find that access to warrantage and input shops and participation in fertilizer micro-dosing demonstrations have increased use of inorganic fertilizer. Access to off-farm employment and ownership of traction animals also contribute to use of inorganic fertilizer. Use of organic fertilizer is less affected by these factors, but is substantially affected by the household's crop mix, access to the plot, ownership of durable assets, labor and land endowments, and participation in farmers' associations. Land tenure influences both inorganic and organic inputs, with less of both on sharecropped and encroached plots. Inorganic fertilizer has a positive impact on millet yields, with an estimated marginal value-cost ratio greater than 3, indicating significant profitability. Organic fertilizer has a positive impact on millet-cowpea yields. We find little evidence of complementarity between inorganic and organic fertilizer. Since warrantage, input supply shops and fertilizer micro-dosing demonstrations increase use of inorganic fertilizer which in turn increases millet yields, these interventions indirectly increase millet yields, although the impacts are relatively small. These findings support promoting increased input use through promotion of inventory credit, input supply shops and fertilizer micro-dosing demonstrations. Other interventions that could help to boost productivity include promotion of improved access to farm equipment and traction animals and improved access to land under secure tenure.
|Date of creation:||2006|
|Contact details of provider:|| Web page: http://www.iaae-agecon.org/|
More information through EDIRC
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
- Christopher F Baum & Mark E. Schaffer & Steven Stillman, 2003.
"Instrumental variables and GMM: Estimation and testing,"
StataCorp LP, vol. 3(1), pages 1-31, March.
- Christopher F Baum & Mark E. Schaffer & Steven Stillman, 2002. "Instrumental variables and GMM: Estimation and testing," United Kingdom Stata Users' Group Meetings 2003 02, Stata Users Group.
- Christopher F Baum & Mark E. Schaffer & Steven Stillman, 2002. "Instrumental variables and GMM: Estimation and testing," Boston College Working Papers in Economics 545, Boston College Department of Economics, revised 14 Feb 2003.
- Christopher F Baum & Mark E. Schaffer & Steven Stillman, 2002. "Instrumental variables and GMM: Estimation and testing," North American Stata Users' Group Meetings 2003 05, Stata Users Group.
- Powell, James L., 1984. "Least absolute deviations estimation for the censored regression model," Journal of Econometrics, Elsevier, vol. 25(3), pages 303-325, July.
- Tahirou Abdoulaye & John H. Sanders, 2005. "Stages and determinants of fertilizer use in semiarid African agriculture: the Niger experience," Agricultural Economics, International Association of Agricultural Economists, vol. 32(2), pages 167-179, 03.
- Abdoulaye, T. & Lowenberg-DeBoer, J., 2000. "Intensification of Sahelian farming systems: evidence from Niger," Agricultural Systems, Elsevier, vol. 64(2), pages 67-81, May.
- Pender, John & Nkonya, Ephraim & Jagger, Pamela & Sserunkuuma, Dick & Ssali, Henry, 2004. "Strategies to increase agricultural productivity and reduce land degradation: evidence from Uganda," Agricultural Economics, Blackwell, vol. 31(2-3), pages 181-195, December.
- Pender, John L. & Nkonya, Ephraim M. & Jagger, Pamela & Sserunkuuma, Dick & Ssali, Henry, 2003. "Strategies To Increase Agricultural Productivity And Reduce Land Degradation: Evidence From Uganda," 2003 Annual Meeting, August 16-22, 2003, Durban, South Africa 25816, International Association of Agricultural Economists.
- Pagan, Adrian & Vella, Frank, 1989. "Diagnostic Tests for Models Based on Individual Data: A Survey," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 4(S), pages 29-59, Supplemen.
- Fan, Shenggen & Hazell, P. B. R. & Thorat, Sukhadeo, 1999. "Linkages between government spending, growth, and poverty in rural India:," Research reports 110, International Food Policy Research Institute (IFPRI).
- Ramaswamy, Sunder & Sanders, John H., 1992. "Population pressure, land degradation and sustainable agricultural technologies in the Sahel," Agricultural Systems, Elsevier, vol. 40(4), pages 361-378. Full references (including those not matched with items on IDEAS)
When requesting a correction, please mention this item's handle: RePEc:ags:iaae06:25643. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (AgEcon Search)
If references are entirely missing, you can add them using this form.